Receptacle terminal block



Jan. 1, 19 29. 1,697,329

J- V. SCHRAIG RECEPTACLE TERMINAL BLOCK Filed D80. 12, 1927 11v VENTO R.JTIQSchrazg A TTOR/Vli V Patented Jan. 1, 1929.

JAMES V. SCI-IRAIG, OF RICHMOND HILL, NEW YORK.-

RECEI TACLE TERMINAL BLOCK. 2

Application filed December 12, 1927.

The main object of the invention is to pro vide an accessory used in themarine circuits and consists of a receptacle terminal block which is soconstructed as to be simple in construction, and inexpensive in cost ofmanufacture. 1

Another object of the invention is to pro vicle a receptacle terminalblock from which cont-act tongues project, the latter being anchored byhaving their lower ends embedded in the block.

The above and other objects will become apparent in the descriptionbelow in whichv characters of reference refer to like-named parts in thedrawing.

Referring briefly to the drawing, Figure 1 is a top plan View as mountedwithin a receptacle which is used generally in ships.

Figure 2 is a longitudinal cross sectional view thru the terminal blockshowing the method of anchoring the terminal block tongues in place.

Figure 3 is a cross sectional view thru the terminal block the sectionbeing taken on line 33 of Figure 2.

Referring in detail to the drwa ing, the numerals 10 indicate the fourwalls of a container or receptacle which together with a bottom andremovable cover (not shown) provides a compartment 11 in which theblocks are positioned. These receptacles are provided with cars 12 andthe parallel side walls are provided with lugs 13 thru which threadedopenings pass, the openings being adapted to receive the threaded endsof con-.

duits thru which the lead wires enter the receptacle.

The terminal block is a rectangular structure which is composed of somesuitable insulating material and is indicated by the numeral 14. Thisterminal block 141- has a seat 15 which is smaller than the area of theblock and has a plurality of countersunk holes 16 passing thru thecenter thru which screws pass when anchoring the terminal blocks in thereceptacle. A channel passes thru the center of the block and on bothSerial No. 239,605.

sides of this channel tongues 17 and 18 are positioned. The tonguesconsist of two joined areas of material which are parallel to each otherand are constructed in this fashion to give resiliency to the tongues.The lower ends of the tongues are provided with ri 'ht angle extensions.19 which are embedded in the block. These extensions are positioned sothat they lie in contact with bridge plates 20 which are also embeddedintermediate their length in the terminal block as is indicated in thesectional view indicated in Figure 3. The ends of the plates 20 arefashioned into ears 21 which are raised above the central portion of thebridge plates. The ears 21 are provided with openings having screws 22.The latter engage threaded openings in the block and are adapted to havethe ends of lead wires wrapped about them and be secured by the screws.

The receptacles intov which the terminal blocks are placed are ofstandard size and with the type of block previously used short circuitthru corrosion often occurred. With this type of terminal block thiselement of danger is removed by the construction of the blocks.

I claim:

1. A terminal block comprising a rectangular base element, said blockbeing composed of insulating material, tongues having their lower endsembedded in said block, and bridge plates partly embedded in said baseand lying in contact with said tongues.

2. A terminal block comprising a rectangular base element, tonguesprojecting from said block, rightangled extensions on said tonguesembedded in said block, longitudinal bridge plates lying embedded insaid block and having ears in contact with the extensions of saidtongues, and screws mounted in theends of said bridge plates.

In testimony whereof I aliix my signature.

JAMES v. sonnaro.

